Nickel Sulfate CAS#7786-81-4
Excellent Solubility: Its high water solubility ensures easy incorporation into various industrial and chemical processes.
Essential in Electroplating: Provides a durable, corrosion-resistant finish, making it vital for high-quality electroplated coatings.
Versatile Industrial Applications: Functions as a key component in catalysts, mordants for textiles, and metal blackening agents.
Specialized Diagnostic Use: Utilized in nickel patch tests to help diagnose allergic reactions with accuracy.
Nickel sulfate appears as blue to blue-green crystals and is an odorless, water-soluble nickel salt. It is incompatible with strong acids and can react dangerously in certain conditions. Widely used in various industries, it plays a key role in nickel patch testing to diagnose allergies. In electroplating, it is crucial for providing a durable, corrosion-resistant coating. It also serves as a raw material for catalysts in chemical processes and acts as a mordant in textile dyeing and printing. Additionally, nickel sulfate is used to blacken zinc and brass and to enhance the appearance of jewelry.
Parameters
Melting point | 848°C |
density | 3.68 |
form | green-yellow orthorhombic crystals |
color | green-yellow orthorhombic crystals, crystalline |
Odor | odorless |
Water Solubility | 27.3-27.7 g/100 mL at 20 ºC |
CAS DataBase Reference | 7786-81-4(CAS DataBase Reference) |
EPA Substance Registry System | Nickel sulfate (7786-81-4) |
Safety Information
Hazard Codes | Xn,N,T |
Risk Statements | 22-40-42/43-50/53-51/53-43-68-48/23-61-49-38-20/22 |
Safety Statements | 22-36/37-60-61-45-23-53 |
RIDADR | UN 3077 9/PG 3 |
WGK Germany | 3 |
RTECS | QR9350000 |
HazardClass | 9 |
PackingGroup | III |
Hazardous Substances Data | 7786-81-4(Hazardous Substances Data) |
Nickel sulfate (NiSO₄) exists in various forms depending on its level of hydration, where water molecules are associated with the ionic compound. Its appearance may range from greenish-yellow to blue or green crystals, depending on how hydrated it is. It is widely used for nickel-plating on iron and copper, serves as a catalyst, functions as a mordant in the textile industry, and is also applied as a coating on select materials.
